Published market benchmarks and exchange rates. Actual lender offers may differ.
30-Year MortgageChecking
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15-Year MortgageChecking
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48-Month Auto BenchmarkChecking
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USD → INRChecking
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U.S. Economic Snapshot
Latest available Federal Reserve Economic Data (FRED). Release schedules differ by indicator, so observation dates may vary.
Federal Funds Rate
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10-Year Treasury Yield
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30-Year Mortgage Average
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CPI Inflation
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Unemployment Rate
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Source: Federal Reserve Economic Data (FRED), Federal Reserve Bank of St. Louis. Values are informational benchmarks, not personalized financial advice or lender offers.
Today’s Market Trend
Latest-available U.S. market snapshot. Delays may apply.
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Investing
Today’s market, stock lookup and investing tools in one place.
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Russell 2000
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VIX
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Investment Growth
Compound growth, contributions and AI follow-up.
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Compound Interest
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Measure return as a percentage of cost.
Retirement Calculator
Estimate long-term savings growth.
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Latest-available market data; delays may apply.
More Than Calculators
IQlator combines trusted calculator formulas with a smart assistant experience, helping you find the right tool and understand the result.
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Instant AnswersGet results and explanations in seconds
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Accurate CalculationsPowered by tested calculator formulas
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Easy to UnderstandClear results with practical context
Free online calculators for money, loans, investing and everyday math
IQlator brings practical calculators and clear explanations into one place. Estimate mortgage and loan payments, compare payoff scenarios, explore investment growth, calculate percentages, convert currencies and units, and use Ask Q when you are not sure which calculator fits your question.
Mortgage & loan calculators
Compare payment, affordability, payoff and interest scenarios using your own assumptions.
1. Choose a calculator or Ask QStart with a specific tool, or describe the calculation you want in everyday language.
2. Review your assumptionsCheck rates, terms, amounts and other inputs. Financial results can change substantially when assumptions change.
3. Compare scenariosTry different rates, payments, terms or contributions to understand how each input affects the result.
Common questions
Are IQlator calculators free?
Yes. The calculators on IQlator are available to use online without a paid subscription.
Are mortgage and loan results exact lender quotes?
No. Calculator results are estimates based on the inputs you provide. Published benchmark rates are shown for context and are not personalized lender offers.
Can I compare different loan or investment scenarios?
Yes. Change the principal, interest rate, term, contribution or other inputs and recalculate to compare alternatives.
What is Ask Q?
Ask Q is IQlator's conversational calculation assistant. It helps identify the type of calculation you need and can guide you toward the relevant calculator.
Understand percentage calculations
Use the percentage calculator for common questions such as finding a percent of a number, measuring percentage change, or determining what percent one value is of another.
Find a percentage of a number
To find 20% of 150, convert 20% to 0.20 and multiply by 150. The result is 30. This pattern is useful for discounts, tips, taxes and many everyday calculations.
Find what percent one value is of another
Divide the part by the whole and multiply by 100. For example, 45 out of 60 is 75% because 45 ÷ 60 × 100 = 75.
Calculate percentage change
Subtract the original value from the new value, divide the difference by the original value, and multiply by 100. A positive result indicates an increase; a negative result indicates a decrease.
Percentage change example
If a price rises from $80 to $100, the increase is $20. Dividing $20 by the original $80 gives 0.25, so the percentage increase is 25%.
Percentage change uses the original value as the denominator, which is why a 25% increase followed by a 25% decrease does not return to the starting value.
Percentage calculator FAQ
How do I convert a percentage to a decimal?
Divide the percentage by 100. For example, 7.5% becomes 0.075.
How do I add a percentage to a number?
Multiply the number by 1 plus the percentage expressed as a decimal. Increasing 200 by 10% is 200 × 1.10 = 220.
How do I subtract a percentage from a number?
Multiply the number by 1 minus the percentage expressed as a decimal. Reducing 200 by 10% is 200 × 0.90 = 180.
Calculations with context
IQlator helps you choose the right tool, understand the inputs, and explore what-if scenarios.
Ask naturally
Describe what you are trying to calculate in everyday language. IQlator can route you to a relevant calculator and use the information you already provided.
Check the assumptions
Financial calculations depend on rates, terms, taxes and other assumptions. Review the inputs before using a result for an important decision.
Explore scenarios
Continue the conversation with questions such as changing a down payment, interest rate, investment contribution or loan term.
